57 lines
2.7 KiB
Plaintext
57 lines
2.7 KiB
Plaintext
#!/usr/bin/env nomsu -V2.4
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use "core"
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use "compatibility/compatibility.nom"
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upgrade %tree to "2.4" as:
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unless (%tree is "Action" syntax tree): return
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if %tree.stub is:
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"when %":
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%conditions = []
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%new_lines = []
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%body = ((%tree.2 upgraded) if (%tree.2 is "Block" syntax tree) else [%tree.2 upgraded])
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for %line in %body:
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if:
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(not (%line is syntax tree)):
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compile error at %tree.source "WUT: %s"
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(not (%line is "Action" syntax tree)):
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add %line to %new_lines
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(%line.stub is "* %"):
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add %line.2 to %conditions
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(%line.stub == "* else %"):
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add (\(else %block) with vars {block:%line.3}) to %new_lines
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(%line.stub != "* % %"):
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add %line to %new_lines
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else:
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add %line.2 to %conditions
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%action = %line.3
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unless (%action is "Block" syntax tree):
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%action = (=lua "Block(\%action.source, \%action)")
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add %action to %conditions
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add (=lua "Action(\%conditions[1].source, unpack(\%conditions))") to %new_lines
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%conditions = []
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return (\(if %body) with vars {body:=lua "Block(\%tree[2].source, unpack(\%new_lines))"})
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"when % is ? %" "when % = ? %":
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%values = []
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%new_lines = []
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%body = ((%tree.5 upgraded) if (%tree.5 is "Block" syntax tree) else [%tree.5 upgraded])
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for %line in %body:
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if:
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(not (%line is "Action" syntax tree)):
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add %line to %new_lines
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(%line.stub is "* %"):
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add %line.2 to %values
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(%line.stub == "* else %"):
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add (\(else %block) with vars {block:%line.3}) to %new_lines
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(%line.stub != "* % %"):
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add %line to %new_lines
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else:
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add %line.2 to %values
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%action = %line.3
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unless (%action is "Block" syntax tree):
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%action = (=lua "Block(\%action.source, \%action)")
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add %action to %values
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add (=lua "Action(\%values[1].source, unpack(\%values))") to %new_lines
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%values = []
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return (\(if %var is %body) with vars {var: %tree.2 upgraded, body:=lua "Block(\%tree[5].source, unpack(\%new_lines))"})
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